[ISSUE #7056]fix: avoid close success channel if invokeSync most time cost on get connection for channel

[absolute8511]

…channel

Change-Id: I29741cf55ac6333bfa30fef755357b78a22b1325

Which Issue(s) This PR Fixes

Fixes #7056

Brief Description

How Did You Test This Change?

[mxsm]

@absolute8511 CI not pass, please fix it

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 50.00000% with 3 lines in your changes missing coverage. Please review.

Project coverage is 42.77%. Comparing base (804f2d8) to head (e05b76e).
Report is 441 commits behind head on develop.

Files with missing lines	Patch %	Lines
...e/rocketmq/remoting/netty/NettyRemotingClient.java	50.00%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             develop    #7057      +/-   ##
=============================================
+ Coverage      42.68%   42.77%   +0.09%     
- Complexity      9254     9285      +31     
=============================================
  Files           1136     1137       +1     
  Lines          80700    81095     +395     
  Branches       10546    10608      +62     
=============================================
+ Hits           34445    34688     +243     
- Misses         41961    42071     +110     
- Partials        4294     4336      +42     

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[lizhimins]

Seems reasonable

[mxsm]

LGTM